Discovered this afternoon that one of the two gateways that your browser reaches the website through was playing up (VIC gateway), and doing so in such a way that your browsers were not falling back to the gateway that was working (QLD)
As a result up to 50% of users trying to browse the website may have seen timeout or connection reset messages. Not sure how long this problem had been occurring - I suspect a day or two - as I hadn't seen the symptoms myself. Issue identified and reported through Facebook group. This is first time we've seen this issue that I can recall. Normally if one gateway is down, you should still be able to browse the website. In this case the gateway wasn't down in a way that caused browsers to fail over to the alternative gateway.Thanks Adrian for reporting the problem.
VIC gateway has been restarted and is behaving normally again.